| 摘要 |
The invention relates to the provision of an alert system as part of a function of broadcast data receiving apparatus of the type provided for the reception and processing of data which is transmitted from a remote location to generate video and/or audio, typically via a television set. The invention utilises the receiver and a communications link such as a telecommunications line to allow the user to generate an alert via a remote control device which emits a signal received by the receiver and then transmit an alert signal to a remote location. In one embodiment a network of remote control signal receivers can be provided throughout a premises. |
